CC(H4DOTC 2.5)-19
CRUISE CONTROL SYSTEM (DIAGNOSTIC)
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
Step Check Yes No
1 CHECK STOP LIGHT SWITCH AND BRAKE
SWITCH CIRCUIT.
1) Turn the ignition switch to OFF.
2) Disconnect the stop light switch and brake
switch harness connector.
3) Turn the ignition switch to ON.
4) Measure the voltage between harness con-
nector terminal and chassis ground.
Connector & terminal
(B65) No. 2 (+) — Chassis ground (
−
):
Is the voltage more than 10 V? Go to step 2. • Check the fuse
No. 16 (in fuse &
relay box).
• Check the har-
ness for open or
short between
stop light/brake
switch and fuse &
relay box.
2 CHECK STOP LIGHT SWITCH AND BRAKE
SWITCH CIRCUIT.
Measure the voltage between harness connec-
tor terminal and chassis ground.
Connector & terminal
(B65) No. 1 (+) — Chassis ground (
−
):
Is the voltage more than 10 V? Go to step 3. • Check the fuse
No. 11 (in fuse &
relay box).
• Check the har-
ness for open or
short between
stop light/brake
switch and fuse &
relay box.
• Check the clutch
switch and circuit.
3 CHECK STOP LIGHT SWITCH AND BRAKE
SWITCH CIRCUIT.
1) Turn the ignition switch to OFF.
2) Disconnect the ECM harness connector.
3) Measure the resistance between ECM har-
ness connector terminal and stop light switch
and brake switch harness connector terminal.
Connector & terminal
(B136) No. 8 — (B65) No. 3:
(B136) No. 9 — (B65) No. 4:
Is the resistance less than 10
Ω?
Go to step 4. Repair the har-
ness.
4 CHECK STOP LIGHT SWITCH AND BRAKE
SWITCH.
Remove and check the stop light switch and
brake switch. <Ref. to CC-10, Stop and Brake
Switch.>
Are the stop light switch and
brake switch OK?
Stop light switch
and brake switch
circuit are OK.
Replace the stop
light switch and
brake switch.
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